Interchangeable appliance for mixing, beating, etc.



INTERCHANGEAL-E APPLIANCE ron MIXING,A- annua, 1m;

Filed oct; 11,1929 2 'sheds-sneu 1 Hmmm',

Patented Nov. l18, l1930 UNITED STATES PATENT OFFICE' INTERCHANGEABLE APPLIANCE FOR MIXING, BEATING, ETC.

Application led October 1, 1929. Serial No. 396,487. l U

The present invention relates to kitchen and household appliances for use in the mixing and beating of materials, and other operations, involved in the preparation or baking .5 and cooking of food materials, and the primary object of the invention is to devise a practical and eilicient` appliance of this character, of durable and inexpensive construction and having instrumentalities of an interchangeable type for adapting the same for various different operating functions. Accordingly, I have devised an appliance adapted for hand operation, although equally adaptable for motor driven use,.and comprising a practical and compactly arranged driving mechanism with which various types of operative 'attachments may be quickly and conveniently connected for-mixing, beating or Whipping and the like.

It is also sought to provide an appliance in which t-he receptacle, provided for containing the materials which are being treated by the device is of removable cup form having a housing for accommodating the various con- 2'5` nections while in operative position.

A further obj ect of the invention is to provide an improved stable form of disconnectible drive connection adapted to afford a rigid, and firm connection with smooth and quiet driving action. j

A novel and improved beating or whipping attachment is'also comprised within the main purpose of the inventlon. v

It is also sought to devise a practical and means for mounting the appliance in position 4for use. i

With the foregoing general objects in view, the inventiony will now be described by reference to the accompanying drawings, illustrating a compact hand-operated device for household use, embodying the various features of improvement, after which those features and combinations which are deemed to be novel and patentable will beset forth and claimed. I

Figure 1 is a front elevation partly in vertical section and partially broken away, illustrating an appliance constructed in accordance with the present' invention; 1

eiiicient supporting as well as wall-attaching l Figure 4 is a perspective view of the recep l tacle or cup member;

Figures 5 and 6, edge and side views, respectively illustrating a modified form of attacn'nent for mixing or beating operations; an

Figure 7 is a perspective View showing the clamping member forsecuring the device to a table or bench.

Referring now to the said drawings in detail, these illustrate the appliance as comprising a hollow body portion 10, and a base member '11, attached thereto by screws 12. Inside the body is formed a block structure 14 to provide a drive for a horizontal shaft 15 having the exterior operating handle 16. The innerend of the shaft 15 carries a gear wheel 17,- meshing with a pinion 18, provided on the lower end of a vertical shaft 20, operating in a sleeve bearing 22, projecting upward from the center of the body 10, as illustrated in Figure 1. The lower end of the shaft 22, has a knob-like extension 23 engaged by a steel spring plate 24, supported by adjusting screws 25, carried by an adjacent block 26, whereby anv upward thrust may be imparted to the shaft 20, and this thrust varied for varying the frictional engagement of the collar or ila-nge 27 on said shaft with the inner face of the body 10,- or marginalportion surrounding the opening into the sleeve bearing 22. By this means the drive connection may be adjusted and any-4 loose play in the pinion 18 and its shaft 20 eliminated. The upper end of the shaft 20,

is bifurcated inside the sleeve 22 as indicated l at 30, for making detachable driving con'- nection with the tongue 32, of the particular attachment or material treating device which is to be mounted into position for operation. In Figures 1 and 2 this is illustrated as a.-

-cream whipping nattachment 'comprising a.

pa1r of whipping elements or frames 33 provided with central sleeves 34, for slidingly engaging. the pair of vertical shafts 35, to

the lower end of which said frames are detachably threaded as-indicated at 36. The upper ends of the shafts 35 are provided with gears 37 having hub portions 38 journaled in the end portions of a bar or'plate 39, and retained in connection therewith by screws 40 and washers 41. The ends of the bar 39 rest on spacer blocks 42 mounted in the ends of a housing 43 which is provided projecting down from the middle portion of the bar or plate 29, and formed with the tongue 32 which engages the forked portion 30 of the pinion shaft 20 inside the sleeve 22, the stem having a shoulder 52 adapted to function as a limiting stop by engagement with the upper end of said sleeve; prior to such engagement it will be understood that the spring member 24 provides `a yielding support for the shaft 20, and other parts connected therewith, including the elements of the mixing or beating attachment.

The top face of the body 10 forms a iat supporting lsurface on which to set thereceptacle or cup member 54 for embracing the bearing sleeve 22. The upper end of the sleeve 55 enters the annular space between the top of the stem and the'iangehub 46 of the gear 47, -so that this interitted relation of the parts provides a firm and substantially rigid bearing structure for the support and drive of the attachment in a quiet smooth manner without any lost motion between the parts. The upper end of the sleeve is also formed with a pair of notches or recesses 5,6, for engagement with lugs 57 (See Figures 2 and 3) projecting inward from the hub portion of the gear 47, whereby the latter is maintained stationary as required for the operation of the cream whipping device. In this operation, the stem 50 and bar 39 are rotated by the shaft 20, carrying the -gears 37 around the fixed gear 47 inplanetary ashion, `and thereby imparting rapid simultaneous rotating motion to the whipping elements 30 in the same direction about their separate individualshafts 35. The direction 'of the thread provided at 36 is opposite to the ,direction of this rotation, to prevent unscrewing of the frames 30 from the shafts 35. The lcup 54 is removable as shown in Figure 6, and

when mounted in operative Aposition upon the 10, the handle 53 may be left inieither right or left hand position (compare Fig-A clubes 1 and 2).

For the cup or receptacle aY cover member .6.0 is. pmyded. having@ central 0Penvi11g62 of appropriate size, and a marginal flange 63 adapted to set inside the upper edge of the receptacle or cup member 54, as illustrated in Figure 1. I

It is apparent that the pinion shaft 20, with its bifurcated end 30, is adaptable for interchangeable use for the driving of different types of attachments, having the same form of stem for connection with said shaft, as for example, the mixing, beating, or stirring de-v vice shown in Figures 5 and 6, comprising the frame 64, with fingers 65, and stem 66, adapted for entering the s leeve 22 and formed with the tongue 32 for engagement with the fork 30. The stem 66 is also formed with the shoulder 52 as well as with a iiange 46 to provide the annular housing space for embracing the upper end of the cup sleeve 65, as inthe cream whipping form'of the attachment.-

The appliance may be supported without any fastening means, as upon the top of a table or the like, but may also be conveniently lsupplied with clamping or securing means for 'attachment to either a horizontal or vertical surface. I have illustrated the base 1member 11 provided with an oblong opening 68, for entry of a lock bar/70'on the end of a ,screw 71, tted through an opening 72 in a horizontal bracket arm or. plate 73and carrying a wing or other form of clamping nut slot or opening 68 so as to engage the-inner -face of the base member 11, and then tighten ing of the nut 74 ei'edts a secure clamping action for holding the appliance in fixed position. Anindex element may beV fitted to the outer end of the screw 71,l such as a plate 75, -for indicating the position of the bar 70 with reference to the opening 68.

A similar locking contrivance may be pro- ,videdfor attaching the vertical bracket arm 76 to afixed wall platel 77, the parts 76 and 77 beingeach'jformed with a boss 7 8,V and the rearl boss cut with an oblong opening 68 lfor the bar 70, and the other locking parts be- .ing practically the same as just described.

For attaching to a .table or bench, the bracket device, such as illustrated in Figure l7, may be employed, comprising the U-clamp member 80, one arm of which is provided with a stem 81, carrying the locking bar 79, adapted for insertion through the opening 68, whereby turning of the screw 83 will operate to clamp the base member 11 securely to the' top surface of the bench or table.

It will thus be seen that I have devised a very practical, compact and eicient construction for fulfilling the desired objects of my invention. The receptacle or cup member is conveniently removable and replaceable in operating position, and the cup sleeve vforms a housing for the drive connections and also coacts withthe shaft parts and upper end of the sleeve 22to produce a rm and substantially rigid bearing structure, insuring a smooth driving action, free from vibration. A yielding support for the drive structure and the attachments connected therewith is also provided by the spring plate 24, which French dressing, etc., inl the' said manner.

` The interchangeable feature isof decided advantage, allowing the quick and convenient interchange. of attachments for other operations, such as the mixing or beating device shown in .Figures 5-6' (for mixing materials such as cake batter, etc.) and other attachments of various types which may be provided Withthe same stem ortongue structure 50-32, for connection with the drive or pinion shaft.

The means provided for securing the appliance in fixed position upon a bracket, ta,- ble, or wall surface affords a quick acting and secure fastening means for this purpose. It is also apparent that the appliance maybe manufactured in any desired size according to requirements, as well as adapted for motor driven use if desired.

While I have illustrated and described what I regard as the preferred and most practical form of construction for embodying the various features of improvement, I desire to be understood as expressly reserving the right to make all changes andinodifications Which fairly fall within the scope ofthe appended claims. l e ylll/*hat I claim is:

1. A device of the character described comprising a body member, driving means mounted in said member and including an upwardly projecting shaft, a receptacle on the top of said member` and having a sleeve or housing enclosing such shaft, and a material treating-device mounted in said receptacle with journal bearing support on the top of said sleeve and .provided With a detachable drive connection with said shaft..

2. A device ofthe character described comprising a body member provided With an upwardly projecting sleeve, driving means mounted in said member and including a vertical shaft projecting into said sleeve, a receptacle mounted on said member and having a sleeveor housing enclosing said iirst sleeve, and material treating means mounted Within I the receptacle'with journal bearing support on the Vtop of the sleeve thereof and provided with a detachable connection with said shaft.

3. A device ofthe character describe/d comprising a body member provided with an upwardly projecting 'sleeve bearing, a receptacle mounted on said member and lprovided with a central sleeve telescopingover said sleeve bearing, and a material treating device mounted within said ieceptacle and having a journal bearing support on the` top of the sleeve tliei'eof, driving means mounted in said body member, and sectional discoiiiiectible shaft elements connecting said driving means and treat-ing device and eliclosed by said sleeve bearing.

4. A device of the character described comprising a body member, driving means mounted in said member and including an upwardly projecting and yieldingly supported shaft, a receptacle mounted on said member and having a sleeve enclosing said shaft, and a material treating device mount- ,ed in said receptacle and having an operative and supporting relation to the upper end of said shaft. l

5. A device of the character described comprising a body member, driving means mounted in said member and including an upwardly projecting shaft, a receptacle mounted on said member and having a sleeve or housing enclosing such shaft, an adjustable spring element in supporting engagement with the lower end of said shaft, and a material treating device mounted in said receptacle and having an operative and supporting relation to theupper end of said shaft.

6. A device of the character described comprising a body member provided with an upwardly projecting sleeve bearing, a receptacle mounted on' said member and having a sleeve or housing enclosing said sleeve bearin driving means in said memberand in cliiqding a vertical shaft projecting intosaid sleeve bearing and provided with a iangc in frictional engagement with the lower end of said bearing, material treating means carried by the upper end of said shaft within said receptacle, and adjustable spring supporting means engaging the lower end Aof said shaft and adapted to vary thev frictional action of said fiange. v 7.V A device of the character described comprising a body member, provided with an upwardly projecting sleeve bearing, a receptacle mounted on said member and provided with a central sleeve telescoping ovefr said sleeve bearing, anda material treating device mounted on said telescopiiig sleeves and provided with an annular recess in bracing engagement with the upper end of said receptacle sleeve, driving means'moi'inted in said .body member, and sectional disconnectible shaft elements connecting said driving means and treating device and enclosed by 'saidsleeve bearing. Y

8. A kitchenappliance' having a body member and a receptacle mounted thereon, said niember and receptacle having telescoping sleeves, a beating or whipping device having a plurality of rotating whipping elements carried about the axis of said sleeves and having a journal bearing support on the upper end of the outer of said sleeves, and driving mechanism including a drive connection extending axially through said sleeves.

9; A kitchen appliance having `a body member and a receptacle mounted thereon, said member and receptacle having telescoping sleeves, a beating or Whipping device comprisingr a carrying member rotating about the axis of said sleeves and having a journal bearing support on the upper end of the outer sleeve, and a plurality of rotating whipping e 4elements suspended therefrom, and driving mechanism including a drive connection extending axially through said sleeves for rotating said carrying member and driven elements and thereby imparting simultaneous rotary movement to said Whipping elements.

10. A kitchenappliance having a body member and a receptacle mountedthereon, said member and receptacle having telescoping sleeves, a beating or Whipping device comprising a carrying member rotating about the axis of said sleeves, and av plurality of rotating whipping elements suspended therefrom, and driving mechanism including a y drive connection extendingaxially through said sleeves for rotating said carrying mem ber, and a gear held xed by the upper end of the receptacle sleeve, said whipping elements having gears in rolling engagement i with s/ad fixed gear.

11. A. kitchen appliance comprising a superposed body member and receptacle hav.

ing telescoping bearing sleeves, a beating de- `vice comprising a rotating horizontal bar Acarrying a plurality of rotary whipping elements, and driving mechanism comprising a drive shaft extending axially through said A telescoping sleeves for rotating said bar and a gear held fixed by the-'upper end of the receptacle sleeve, said Whipping elements having drive pinons 1n rolling engagement with the fixed gear and the latter having a flange cooperating with said drive shaft to Y forman annular recess embracing the upper end of said receptacle sleeve.

In witness whereof I hereunto atix my slgnature.

FREDERIC W. PARKHILL.- 

